Subcutaneous Injection: What It Is and How to Give One L Carnitine Injection (Intramuscular): How It Works & What to Expect Mesotherapy Cocktails, Exosomes Regenerative Skin Boosters Are some methods of administering HRT inherently better than others? Audience requested: subcutaneous injections. Subcutaneous means under the skin. In this type of injection, a short needle is used to inject medication Levocarnitine injection is used for..??? L Carnitine Injections MD Ageless Solutions